[openib-general] Re: rdma_bind_addr question

Tom Tucker tom at opengridcomputing.com
Thu Oct 20 13:46:04 PDT 2005


On Thu, 2005-10-20 at 13:09 -0700, Sean Hefty wrote:
> Tom Tucker wrote:
> > BTW -- I think this means that we need an ARPHRD_IWARP type.
> 
> It may be that the CMA can simply look in its local device list for an ib_device 
> that has a given MAC address.

The issues (I think) are a) being able to appropriately fail a bad IP
address (i.e. not an RDMA device), b) interpreting the addresses in the
net_device structure, and c) muxing the request to either the IB_CM or
IW_CM respectively. 

Unfortunately, I'm still working through the design and don't have it
all figured out yet. I will absolutely be posting preliminary patches
for comment and review.

Thanks,

> I don't know the detail of how iWarp will work with this.  Will iWarp need a 
> call similar to ib_translate_addr() to translate an IP address into a MAC 
> address?  Are the MAC addresses stored with the ib_device somehow?
> 
> - Sean



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